China's aviation authorities concluded that a Boeing 737 crashed in March 2022 after someone deliberately cut off fuel to the engines, killing all 132 people aboard.
The crash near Wuzhou in Guangxi province remained one of aviation's deadliest incidents in recent years. The aircraft plummeted from cruising altitude in just minutes, leaving investigators puzzled for months about the cause.
The Chinese Civil Aviation Administration's final report determined that the left engine's fuel shutoff valve was manually closed during flight. This action caused a complete loss of thrust and made recovery impossible. The report did not identify who closed the valve or establish motive, leaving critical questions unanswered about whether this was deliberate sabotage, a suicide attempt, or a catastrophic error during an emergency procedure.
Boeing 737s have faced scrutiny since two fatal crashes involving the MAX variant in 2018 and 2019, though this incident involved an older 737-800 model operated by China Eastern Airlines. The plane had undergone routine maintenance before departure and showed no technical defects.
The finding contradicts earlier speculation that a mechanical failure or structural problem brought down the aircraft. Instead, the investigation points to human action as the root cause. China's authorities shared the report with international aviation bodies and Boeing, contributing to the global understanding of cockpit safety protocols.
The crash prompted renewed focus on access to critical flight controls and the need for enhanced monitoring systems in commercial aircraft. Airlines worldwide reviewed their procedures for fuel system management and pilot authorization protocols following the incident.
WHY IT MATTERS: The report establishes that commercial aircraft remain vulnerable to deliberate interference with core systems, raising questions about cockpit security and access controls in modern aviation.